60.64% is the change from 343 to 551
Calculation steps:
[( 551 - 343 ) ÷ 343] x 100 = 60.64%
Formula
Percentage change = [(551 - 343) / 343] x 100
Subtract the new number by the original number
551 - 343 = 208
208 ÷ 343 = 0.6064139941690962
0.6064139941690962 x 100 = 60.64%